Open Images

• Format specification

• Supported annotations:

  • Rectangles (detection task)
  • Tags (classification task)
  • Polygons (segmentation task)

• Supported attributes:

  • Labels

    • score (should be defined for labels as text or number). The confidence level from 0 to 1.

  • Bounding boxes

    • score (should be defined for labels as text or number). The confidence level from 0 to 1.
    • occluded (both UI option and a separate attribute). Whether the object is occluded by another object.
    • truncated (should be defined for labels as checkbox -es). Whether the object extends beyond the boundary of the image.
    • is_group_of (should be defined for labels as checkbox -es). Whether the object represents a group of objects of the same class.
    • is_depiction (should be defined for labels as checkbox -es). Whether the object is a depiction (such as a drawing) rather than a real object.
    • is_inside (should be defined for labels as checkbox -es). Whether the object is seen from the inside.

  • Masks

    • box_id (should be defined for labels as text). An identifier for the bounding box associated with the mask.
    • predicted_iou (should be defined for labels as text or number). Predicted IoU value with respect to the ground truth.

Open Images export

Downloaded file: a zip archive of the following structure:

└─ taskname.zip/
    ├── annotations/
    │   ├── bbox_labels_600_hierarchy.json
    │   ├── class-descriptions.csv
    |   ├── images.meta  # additional file with information about image sizes
    │   ├── <subset_name>-image_ids_and_rotation.csv
    │   ├── <subset_name>-annotations-bbox.csv
    │   ├── <subset_name>-annotations-human-imagelabels.csv
    │   └── <subset_name>-annotations-object-segmentation.csv
    ├── images/
    │   ├── subset1/
    │   │   ├── <image_name101.jpg>
    │   │   ├── <image_name102.jpg>
    │   │   └── ...
    │   ├── subset2/
    │   │   ├── <image_name201.jpg>
    │   │   ├── <image_name202.jpg>
    │   │   └── ...
    |   ├── ...
    └── masks/
        ├── subset1/
        │   ├── <mask_name101.png>
        │   ├── <mask_name102.png>
        │   └── ...
        ├── subset2/
        │   ├── <mask_name201.png>
        │   ├── <mask_name202.png>
        │   └── ...
        ├── ...

Open Images import

Uploaded file: a zip archive of the following structure:

└─ upload.zip/
    ├── annotations/
    │   ├── bbox_labels_600_hierarchy.json
    │   ├── class-descriptions.csv
    |   ├── images.meta  # optional, file with information about image sizes
    │   ├── <subset_name>-image_ids_and_rotation.csv
    │   ├── <subset_name>-annotations-bbox.csv
    │   ├── <subset_name>-annotations-human-imagelabels.csv
    │   └── <subset_name>-annotations-object-segmentation.csv
    └── masks/
        ├── subset1/
        │   ├── <mask_name101.png>
        │   ├── <mask_name102.png>
        │   └── ...
        ├── subset2/
        │   ├── <mask_name201.png>
        │   ├── <mask_name202.png>
        │   └── ...
        ├── ...

Image ids in the <subset_name>-image_ids_and_rotation.csv should match with image names in the task.